Specific heat and magnetocaloric effect studies in multiferroic YMnO3

Swamy, Nikhil; Kumar, Naresh; Reddy, P. Venugopal; Gupta, Manish; Samatham, S. Shanmukharao; Venkateshwarulu, D.; Ganesan, V.; Malik, Vikas; Das, B. K.

doi:10.1007/s10973-014-4223-3

Cited by 26 publications

(10 citation statements)

References 28 publications

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“…45 Specic heat presents the advantage of delivering values required for further pump or refrigerator design, should the sample in question be selected. 46 value of n reaches 2 above the Curie temperature and 1 far below the Curie temperature. The n exponent exhibits a moderate decrease with increasing temperature, with a minimum value in the vicinity of the transition temperature, sharply increasing above T C .…”

Section: Magnetocaloric Propertiesmentioning

confidence: 92%

Role of lanthanum vacancy on the structural, magnetic and magnetocaloric properties in the lacunar perovskite manganites La_0.8−x□_xNa_0.2MnO₃ (0 ≤ x ≤ 0.15)

et al. 2017

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Section: Magnetocaloric Propertiesmentioning

confidence: 92%

Role of lanthanum vacancy on the structural, magnetic and magnetocaloric properties in the lacunar perovskite manganites La_0.8−x□_xNa_0.2MnO₃ (0 ≤ x ≤ 0.15)

et al. 2017

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“…From the calculated relative amounts of Mn 2 þ and Mn 3 þ we can write the formula of our compound as YMn 1.152 O 3 , which is in good agreement with the results of the ICP analysis. It should be emphasized that the ferrimagnetic behavior in YMnO 3 has been recently, for the first time, reported by Swamy and co-authors [16]. They explained the observed transition from paramagnetic to ferrimagnetic phase of a spin glass type in their samples by spin canting.…”

Section: Resultsmentioning

confidence: 64%

Hydrothermally assisted synthesis of YMnO

Branković

Počuča-Nešić

et al. 2015

Ceramics International

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In this work single phase hexagonal YMnO 3 powders were prepared starting from Y(CH 3 COO) 3 Á xH 2 O, Mn(CH 3 COO) 2 Á 4H 2 O, KMnO 4 and KOH using methods of conventional (280 1C for 6 h) or microwave assisted hydrothermal synthesis (200 1C for 2 h) followed by calcination at 1200 1C for 2 h. According to FESEM analysis the calcined powders consisted of submicronic YMnO 3 particles, which were uniform in shape and size. Ceramic samples were obtained by sintering the as-synthesized powders at 1400 1C for 2 h. XRD analysis confirmed the presence of the single phase hexagonal YMnO 3 . SEM analysis showed a dense and homogeneous microstructure with typical inter-and intra-grain cracks. Magnetic measurements indicated ferrimagnetic properties that were explained by non-stoichiometry of the obtained compound and an excess of manganese that was confirmed by ICP analysis.

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“…In conclusion, the electronic structure of multiferroic BFO has been investigated by using the PES and XAS. The measured PES survey spectrum, Fe 2p PES and XAS spectra show that the Fe ions are formally trivalent (3d 5…”

Section: Resultsmentioning

confidence: 99%

An in situ resonant photoemission and x-ray absorption study of the BiFeO3 thin film

Ablat

Mamat

et al. 2016

Ceramics International

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Multiferroic bismuth ferrite (BiFeO 3 ) thin films were prepared by pulsed laser deposition (PLD) technique. Electronic structures of the film have been studied by in situ photoemission spectroscopy (PES) and x-ray absorption spectroscopy (XAS). Both the Fe 2p PES and XAS spectra show that Fe ion is formally in +3 valence state. The Fe 2p and O K edge XAS spectra indicate that the oxygen octahedral crystal ligand field splits the unoccupied Fe 3d state to t 2g ↓ and e g ↓ states. Valence band Fe 2p-3d resonant photoemission results indicate that hybridization between Fe 3d and O 2p plays important role in the multiferroic BiFeO 3 thin films.

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Specific heat and magnetocaloric effect studies in multiferroic YMnO3

Cited by 26 publications

References 28 publications

Role of lanthanum vacancy on the structural, magnetic and magnetocaloric properties in the lacunar perovskite manganites La_0.8−x□_xNa_0.2MnO₃ (0 ≤ x ≤ 0.15)

Role of lanthanum vacancy on the structural, magnetic and magnetocaloric properties in the lacunar perovskite manganites La_0.8−x□_xNa_0.2MnO₃ (0 ≤ x ≤ 0.15)

Hydrothermally assisted synthesis of YMnO

An in situ resonant photoemission and x-ray absorption study of the BiFeO3 thin film

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Specific heat and magnetocaloric effect studies in multiferroic YMnO3

Cited by 26 publications

References 28 publications

Role of lanthanum vacancy on the structural, magnetic and magnetocaloric properties in the lacunar perovskite manganites La0.8−x□xNa0.2MnO3 (0 ≤ x ≤ 0.15)

Role of lanthanum vacancy on the structural, magnetic and magnetocaloric properties in the lacunar perovskite manganites La0.8−x□xNa0.2MnO3 (0 ≤ x ≤ 0.15)

Hydrothermally assisted synthesis of YMnO

An in situ resonant photoemission and x-ray absorption study of the BiFeO3 thin film

Contact Info

Product

Resources

About

Role of lanthanum vacancy on the structural, magnetic and magnetocaloric properties in the lacunar perovskite manganites La_0.8−x□_xNa_0.2MnO₃ (0 ≤ x ≤ 0.15)

Role of lanthanum vacancy on the structural, magnetic and magnetocaloric properties in the lacunar perovskite manganites La_0.8−x□_xNa_0.2MnO₃ (0 ≤ x ≤ 0.15)